Highly Luminescent Copper Nanoclusters Stabilized by Ascorbic Acid for the Quantitative Detection of 4-Aminoazobenzene.
Qiang LiYunhao LiHeguo LiXiaoshan YanGuolin HanFeng ChenZhengwei SongJianqiao ZhangWen FanChangfeng YiZushun XuBien TanWei YanPublished in: Nanomaterials (Basel, Switzerland) (2020)
As one of the widely studied metal nanoclusters, the preparation of copper nanoclusters (Cu NCs) by a facile method with high fluorescence performance has been the interest of researchers. In this paper, a simple, green, clean, and time-saving chemical etching method was used to synthesize water-soluble Cu NCs using ascorbic acid (AA) as the reducing agent. The as-prepared Cu NCs showed strong green fluorescence (with a quantum yield as high as 33.6%) and high ion stability, and good antioxidant activity as well. The resultant Cu NCs were used for the detection of 4-aminoazobenzene (one of 24 kinds of prohibited textile compounds) in water with a minimum detection limit of 1.44 μM, which has good potential for fabric safety monitoring.
Keyphrases
- energy transfer
- label free
- sensitive detection
- metal organic framework
- loop mediated isothermal amplification
- water soluble
- quantum dots
- aqueous solution
- fluorescent probe
- gold nanoparticles
- wastewater treatment
- mass spectrometry
- climate change
- molecularly imprinted
- oxide nanoparticles
- reduced graphene oxide
- liquid chromatography